Filter
Top Products
29
4. Steam Damper Air System Connections
This dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply of
compressed air. The air connection is made to the steam damper solenoid valve, which is located at the
rear inner top area of the dryer just in front of the electric service relay box.
a. Air Requirements
b. Air Connection
Air connection to system --- 1/8” N.P.T.
c. No air regulator or filtration is provided with the dryer. External regulation/filtration of 80 psi (5.51 bar)
must be provided. It is suggested that a filter/regulator/gauge (F/R/G) arrangement be added to the
compressed air line just before the dryer connection. This is necessary to ensure that correct and clean
air pressure is achieved.
5. Steam Damper System Operation
The steam damper shown in Diagram 1 in the illustration on the next page, allows the coil to stay constantly
charged eliminating repeated expansion and contraction. When the damper is opened, the air immediately
passes through the already hot coil, providing instant heat to start the drying process. When the damper is
closed, ambient air is drawn directly into the basket (tumbler), allowing a rapid cool down (Diagram 2).
Compressed Air Supply Air Pressure
Normal 80 psi 5.51 bar
Minimum Supply 70 psi
4.82 bar
Maximum Supply 90 psi
6.21 bar